Simplified Bohr Orbit Radius

Simplified Bohr Orbit Radius

### Formula:

$$r_n=0.529\frac{n^2}{Z}\text{ Å}$$

### Terminologies:

- $$r_n$$ → Radius of nth orbit.

- n → Principal quantum number.

- Z → Atomic number.

- Å → Angstrom; unit of length equal to 10⁻¹⁰ metre.

### Usage:

- Used for quick calculation of orbital radius.